We are running the newest version of Providence 1.7. Our installation is several years old and we've added quite a number of relationship types.
I've just noticed that it's not possible to add an entity to a collection. The reason is, I think, that there is no suitable relationship type defined for entity <-> collection (error message: "Invalid relationship type"). When I go to Administration > Relationship Types there is no top level entry "entity ⇔ collection relationships" (as in fresh system) so I can't add a relationship type for this relationship! What can I do?? How can I add the top level relationship type???
Thank you and kind regards,
Martin Hampl